Question

Most of the energy used by living things comes either directly or indirectly from what?

Answer 1

the sun

Most of the energy used by living things comes either directly or indirectly from the sun. Thats because sunlight provides the energy for photosynthesis. This is the process in which plants and certain other organisms synthesize glucose  C 6 H 12 O 6  . The process uses carbon dioxide and water and also produces oxygen. The overall chemical equation for photosynthesis is:.